358 ESSAYS anv OBSERVATIONS 
mous Mr Sharp, and fhunned the great 
multiplicity of inftruments M. Daviel 
makes ufe of, which renders this opera- 
tion more fimple, lefs tedious, and _ lefs 
dangerous. . ; 
I fhall next mention the fuccefs of each 
operation in the order they were perform- 
ed. 
1. RoBERT Laurie, aged about 30 
years, was admitted into the Royal Infir- 
mary with a cataract in both eyes. 
I operated on the left eye the 23d of 
July 1755. 
As foon as I had paffed the knife into 
the anterior chamber, he turned his eyes 
fo much upwards, that the cornea was 
quite out of fight ; I waited till the eye 
returned to its former pofition, when I 
found the point of the inftrument in the 
iris, which I immediately difengaged, and 
finifhed the operation without any other 
accident. 
I expeéted a great inflammation from 
the zris being touched, but was agreea- 
bly difappointed, finding the man recover 
with 
